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diff --git a/chromium/components/autofill/content/browser/risk/fingerprint.h b/chromium/components/autofill/content/browser/risk/fingerprint.h
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+++ b/chromium/components/autofill/content/browser/risk/fingerprint.h
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+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Generates fingerprints appropriate for sending to the Google Wallet Risk
+// engine, which is the fraud-detection engine used for purchases powered by
+// Google Wallet.  A fingerprint encapsulates machine and user characteristics.
+// Because much of the data is privacy-sensitive, fingerprints should only be
+// generated with explicit user consent, including consent to gather geolocation
+// data.
+
+#ifndef COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_
+#define COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/callback_forward.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/autofill/core/browser/autofill_manager_delegate.h"
+
+class PrefService;
+
+namespace base {
+class Time;
+}
+
+namespace content {
+class WebContents;
+}
+
+namespace gfx {
+class Rect;
+}
+
+namespace WebKit {
+struct WebScreenInfo;
+}
+
+namespace autofill {
+namespace risk {
+
+class Fingerprint;
+
+// Asynchronously calls |callback| with statistics that, collectively, provide a
+// unique fingerprint for this (machine, user) pair, used for fraud prevention.
+// |obfuscated_gaia_id| is an obfuscated user id for Google's authentication
+// system. |window_bounds| should be the bounds of the containing Chrome window.
+// |web_contents| should be the host for the page the user is interacting with.
+// |version| is the version number of the application. |charset| is the default
+// character set. |accept_languages| is the Accept-Languages setting.
+// |install_time| is the absolute time of installation.
+void GetFingerprint(
+    uint64 obfuscated_gaia_id,
+    const gfx::Rect& window_bounds,
+    const content::WebContents& web_contents,
+    const std::string& version,
+    const std::string& charset,
+    const std::string& accept_languages,
+    const base::Time& install_time,
+    DialogType dialog_type,
+    const std::string& app_locale,
+    const base::Callback<void(scoped_ptr<Fingerprint>)>& callback);
+
+}  // namespace risk
+}  // namespace autofill
+
+#endif  // COMPONENTS_AUTOFILL_CONTENT_BROWSER_RISK_FINGERPRINT_H_